EXTRACTION ABSORBTIOMETRIC DETERMINATION OF AMPICYLINE BY OXASINE BASIC DYE NILE BLUE “B”. Proceedings of the YSU B: Chemical and Biological Sciences, [S. l.], v. 36, n. 3 (199), p. 61–64, 2002. DOI: 10.46991/PYSUB.2002.36.3.061. Disponível em: https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol36_no3_2002_pp061-064. Acesso em: 21 jan. 2026.